Cross Hatch Cutters Models 295

Transcription

1 Cross Hatch Cutters Models 295 Cross Hatch Cutter with free turnable axle SCROLLRULER adjustable Cross Cut Ruler Folding Ruler Folding Ruler with handle Models 295/XIV and 295/I with cutting head and folding ruler testing equipment for quality management Technical Description and Operating Instructions Low-priced Hand Instrument High Economic Efficiency caused by four independent Cutting Edges Standardized Cross Cutting Tests on different Coating Materials

2 SAFTY INSTRUCTIONS Proper use The Model 295 is intended only for adhesion tests by carrying out the cross-cut test in accordance with the international standards. The Cross Hatch Cutter is a purely mechanical instrument. Risk of injuries! Danger The blades of the cross cutters are very sharp edged and therefore may cause injuries, if the instrument is not handled correctly and carefully! Purpose and Application To the versions I, II and VII of Models 295 the cutting head used in each case is mounted in a hand grip in a fixed manner. Because they are, during the test procedure, moved manually over the surface to be tested, the pressure exerted by the hand has to be distributed as evenly as possibly over the cutting head with all its cutters arranged in parallel, in order to obtain a pattern of cuts by which the coating to be tested is cut through uniformly in parallel to the substrate. This depends on the user and requires a certain "feeling" or experience, respectively. To facilitate the handling the versions IX, X and XI have a free turnable axle between the hand grip and the cutting head. The adhesion of a coating on a base material is not only a mechanical property defining the bond between coating and substrate, but it is also of particular importance with regard to the corrosion protection, since areas of poor adhesion can easily be affected by corrosion. For many years already the cross cutting is the best known and the most frequently used adhesion test method for different coating materials on various substrates! The standardised cross-cut test provides a very straight forward method of establishing the adhesion quality. Design and Function The ERICHSEN Cross Hatch Cutter 295 is a hand operated instrument at an advantageous price that meets the requirements of all cross-cut test standards. Model 295 consists of an ergonomically designed hand grip into which the cutting head is fitted in an adjustable manner to enable the instrument to be operated in a way which is most comfortable to the user. Various versions with different cutting heads are available, which have each four cutting edges (except Mod. 295/VI, with two cutting edges). This is a big benefit, also with regard to it s economic efficiency, because there are still three spare cutting edges ready for use, when the first one inevitable sometime will be worn-out. The axle supports the uniform distribution of pressure over the total area of the cutting head, and thus the results are less dependent of the user. Herewith many users have made the experience, that the application is considerably more fatigue-free and more comfortable! However, to comply with the special liking of each user for the performance preferred, the versions IX, X and XI are additionally equipped with a locking ring. By turning this ring the hand grip and the cutting head are connected rigidly as it is the case of the rigid fixed versions I, II and VII, well known as well as often successfully used for many years already. Most cross-cut instruments from the 295 range are supplied complete, i.e. with cutting head mounted on the plastic handle and are contained in a sturdy plastic carrying case together with polyamide bristle brush and magnifying glass with 2.5 magnification.

3 Test Principle In the case of the single cut instruments, Models 295/III, XII and XIII a folding ruler is also included. There are three versions of folding rulers available: for Mod. 295/III: for Mod. 295/XII: for Mod. 295/XIII: with 10 swivel-mounted folding rulers of 1 mm thickness with 10 swivel-mounted folding rulers of 1 mm and 1.5 mm thickness each (1.5 mm = acc. to Daimler-Benz) with 5 swivel-mounted folding rulers of 1 mm/2 mm/3 mm thickness each. The basic principle is to cut through the coating with a series of several cuts at right angles in a defined manner. The square pattern that is obtained can be evaluated visually by examining the way in which the coating has broken away from the base material (along the cutting edges and/or complete squares),and this can be compared with schematic representations in the standard. The result will be furnished with a judgement scale s code (e.g. with the aid of the evaluation table in accordance with EN ISO 2409 on the last page of this technical description). These folding rulers provide the ruler thicknesses of 1 mm, 1.5 mm, 2 mm or 3 mm for the required cutting distances all of a piece i.e. it is no longer necessary to build them up using several rulers of 1 mm. The folding ruler for Model 295/XII is also equipped with rulers for a cut distance of 1.5 mm, in accordance with the Daimler-Benz standard s stipulations. The new innovative design with it s hand grip in the shape of a helved ball, enables a considerably more comfortable and fatigue-free handling with the folding ruler of Model 295/XIII (folding ruler also separately available). Due to several requests a new and versatile applicable single edge cutting device is now available. With Model 295/XIV free cuts on curved surfaces are now possible. It consists of a special hard-coated test tip mounted into an adapter block with holder. A helpful and for many of such applications recommandable flexible steel ruler is already included. The SCROLLRULER 295/XV is a universal ruler for cross hatch cuts, where the desired cutting distances (6 x 1 mm, 6 x 2 mm, 6 x 3 mm, 11 x 1 mm, 11 x 1.5 mm) can be adjusted very easily as well as comfortable, simply by turning a thumb wheel. 6 x 2 EN ISO - ASTM - VDA 2 x 5 EN (früher ECCA) 11 x 1 ASTM - EN Please note: The Mod. 295 s cutting heads are made of high class hardened steel, with altogether 4 cutting edge traverses for a maximum of long lasting lifetime. But, depending of the use, a continuously occurring wear of the used cutting blades, is inevitable! Due to this fact, ERICHSEN offers a resharpenservice for worn cutting heads with still suitable blades. Regardless of this, of course, all cutting head types are also available as spares.

4 Order Informations Figure Ord.-No. Description Multi-Cross Cutter 295/I with 6 edges, cutting distance 1 mm, incl Multi-Cross Cutter 295/II with 6 edges, cutting distance 2 mm, incl Multi-Cross Cutter 295/VII with 6 edges, cutting distance 3 mm, incl Multi-Cross Cutter 295/IX with free turnable axle between hand grip and cutting head, 6 edges, cutting distance 1 mm, incl Multi-Cross Cutter 295/X, with free turnable axle between hand grip and cutting head, 6 edges, cutting distance 2 mm, incl Multi-Cross Cutter 295/XI, with free turnable axle between hand grip and cutting head, 6 edges, cutting distance 3 mm, incl Single Edge Cutting Device 295/III with Folding Ruler with 10 swivel-mounted folding rulers of 1 mm thickness each, incl. magnifying glass, polyamide bristle brush and

5 Order Information Figure Ord.-No. Description Single Edge Cutting Device 295/XII with Folding Ruler with 10 swivel-mounted folding rulers of 1 mm and 1,5 mm thickness each, incl. magnifying glass, polyamide bristle brush and Single Edge Cutting Device 295/XIII with Folding Ruler egonomically optimized, triangular version with handle and 5 swivel-mounted folding rulers of 1 mm, 2 mm and 3 mm thickness each, incl SCROLLRULER 295/XV, universal cross cut ruler, scaled cutting distances (6 x 1 mm, 6 x 2 mm, 6 x 3 mm, 11 x 1 mm and 11 x 1,5 mm) adjusted by turning a thumb wheel Multi-Cross Cutter 295/V, with 11 edges, cutting distance 1 mm, incl Multi-Cross Cutter 295/VI, with 11 edges, cutting distance 2 mm, incl Multi-Cross Cutter 295/IV, with 2 edges, cutting distance 5 mm, incl Single Edge Cutting Device 295/XIV, hard-coated test tip mounted into an adapter block with holder, for cuts on curved sufaces, incl. felxible ruler and, without Manufacturer s Test

6 Order Information Figure Ord.-No. Description Cutter 295/I and holder, with 6 edges, cutting distance 1 mm, incl. tubular, without Manufacturer s Test Cutter 295/II and holder, with 6 edges, cutting distance 2 mm, incl. tubular, without Manufacturer s Test Cutter 295/V and holder, with 11 edges, cutting distance 1 mm, incl. tubular, without Manufacturer s Test Folding Ruler with 10 swivel-mounted folding rulers of 1 mm each as supplied with model 295/III, without Manufacturer s Test Folding Ruler with 10 swivel-mounted folding rulers of 1 mm and 1.5 mm thickness each as supplied with model 295/XII, without Manufacturer s Test Folding Ruler egonomically optimized, triangular version as supplied with model 295/XIII, with 5 swivelmounted folding rulers of 1 mm, 2 mm and 3 mm thickness each, without Manufacturer s Test Cutter (Spare Part) for models 295/I and 295/IX Cutter (Spare Part) for models 295/II and 295/X

7 Order Information Figure Ord.-No. Description Cutter (Spare Part) for models 295/III, 295/XII and 295/XIII Cutter (Spare Part) for model 295/IV Cutter (Spare Part) for model 295/V Cutter (Spare Part) for model 295/VI Cutter (Spare Part) for models 295/VII and 295/XI Test Tip (Spare Part) for model 295/XIV Reference Class: Mostl versions of Model 295 (without 295/XIV, 295/XV) are supplied with a Manufacturer s in accordance with DIN that includes among others the following information: Spacing between the outer cutting edges (at Multi-Cross Cutter), angle of cutting edge, cutting edge, deviation between the cutting edges (at Multi-Cross Cutter), product identification, test equipments used and their calibration results, date, name of inspector. When checking the cross cutting knife-edges, a contour measuring instrument is used to determine, across the cutting direction, the profile line from which all values relevant to the quality are then deduced.

8 Standard Layer thickness No. of cuts x distance (mm) ISO 2409 EN ISO ) JIS K EN ) (formerly ECCA-T6) up to 60 µm 60 µm up to 120 µm 120 µm up to 250 µm up to 60 µm above 60 µm ASTM D 3359 up to 50 µm 50 µm up to 125 µm VDA DBL 5416 up to 60 µm 60 µm up to 120 µm above 120 µm not dependent on film thicknesses 6 x 1 2) 6 x 2 3) 6 x 2 6 x 3 6 x 1 2 x 5 11 x 1 6 x 2 6 x 1 6 x 2 6 x 3 Model 6 x /XII 295/I, 295/IX, 295/III, 295/XII, 295/XIII 295/II, 295/X, 295/III, 295/XII, 295/XIII 295/II, 295/X, 295/III, 295/XII, 295/XIII 295/VII, 295/XI, 295/XII, 295/XIII 295/I, 295/IX, 295/III, 295/XII, 295/XIII 295/IV, 295/III, 295/XII, 295/XIII 295/V, 295/III, 295/XII, 295/XIII 295/II, 295/X, 295/III, 295/XII, 295/XIII 295/I, 295/IX, 295/III, 295/XII, 295/XIII 295/II, 295/X, 295/III, 295/XII, 295/XIII 295/VII, 295/XI, 295/XII, 295/XIII ISO BS 3900:E6 NF T (all withdrawn) to be specified by agreement 11 x 2 295/VI 1) 2) 3) 4) Since 1994, the European standard EN ISO 2409 replaces the national standards DIN 53151, BS 3900:E6, NF T 30-38, NEN 5337 and SIS for hard substrates for soft substrates The cross hatch test is intensified by a subsequent deep drawing test acc. to EN ISO 1520, which can be performed using the ERICHSEN Cupping Test Machines, Models 200 and 202 C. Determination of Cross Hatch Cut Classifications Cuts appearance Description Classification Completely smooth blades of the cuts, without any loss of coating material. 0 Loss of small coating material s particles, detached from the cuts intersections. The loss of coating material is just a little bit more than 5% of the complete Cross Hatch Cut s area. 1 Loss of small coating material s flakes along the cuts blades and/or at their intersections. The loss of coating material is distinctly greater than 5% up to just a little bit more than 15% of the complete Cross Hatch Cut s area. 2 Loss of coating material s flakes along the cuts blades and/or of squares (partly or wholly). The loss of coating material is distinctly greater than 15% up to just a little bit more than 35% of the complete Cross Hatch Cut s area. 3 Loss of coating material s flakes along the cuts blades and/or of squares (partly or wholly). The loss of coating material is distinctly greater than 35% up to just a little bit more than 65% of the complete Cross Hatch Cut s area. 4 Coating material s loss of distinctly more than 65%, which cannot even be classified by classification 4. 5 The right of technical modifications is reserved. Group 12 TBE/BAE 295 VII/2010